Pocket holding chair.



J. T. HAY.

Patented Aug. 13, 1912.

2 SEEETSBHEET 1.

WIT/VESSEL? H T TORNEKS.

J. T. HAY.

POCKET FOLDING CHAIR. APPLICATION FILED M128, 1910.

Patented Aug. 13, 1912.

2 BKEBTB-BHEET 2.

Fi 4. F 'y. 5.

WITNESSES WOG M J1 77H F57 o. )1 4y ATTORNEYS.

JOHN T. HAY, or nanxn COUNTY, omo.

-rocxn'r FOLDING 01mm.

Specification of Letters Patent.

Patented Aug. 13, 1912.

Application filed March 28, 1910. Serial No. 552,114.

To all whom it may concern Be it known that I, JOHN T. HAY, a citizen of the United States, residing near Union City, in the county of Darke and State of Ohio, have invented certain new and useful Improvements in Pocket Fold- .from one place to another.

I accomplish the object of the invention by the mechanism illustrated in the accompanying drawings, in which- Figure 1 is a view in slde elevation of my improved chair in position'to be used as a seat. Fig. 2 is a front view of same. Fig. 3 is a top plan view showing the seat broken away and removed in part to dlsclose the underlying mechanism of the chair. Fig. 1 is a vertical section of one of the rockers on the line 4-4 of Fig. 6. Fig. 5 is a side elevation of one of the ends forming the joint or separable part of the rocker. Fig. 6 is a like View of the mate or opposite end portion of the rocker which is adapted to cooperate with the part shown in Fig 5. In Fig. 6 a portion of the sleeve to recelve the opposite member of the joint is broken away and sectioned. Fig. 7 is a detail in elevation looking toward the inner side of the rocker of the means for removably securing the rocker to the superimposed chair. Fig. 8 is a vertical section on the line 88 of Fig. 7. Fig. 9 is a top view and Fig. 10 a side view of the hinge joint used at various parts of my improved chair. Fig. 11 represents the chair with the rockers removed and the chair in its folded condition. Fig. 12 shows the rockers as separately folded from the remaining portion 'of the chair, and Fig. 13 illustrates a modified form of flexible tie and reel for automatically winding it up.

Like characters of reference indicate like parts throughout the several views of the drawings.

14 is the main post to whichthe oblique braces of my cha1r are pivotally attached.

This post 'is maintained when the chair is in position for use, substantially in a vertical position under the middle of the seat of the chair and is of such len th as to avoid touching the chair seat or oor upon which the chair may be placed. This post will preferably be formed with four equi-distant longitudinal V-shaped channels extending the full length of the post and forming four radial flanges which will be embraced by the bifurcated ends of the diagonal braces, which bifurcated ends will be hinged or pivotally secured to the post by means of suitable rivets as shown.

15 are diagonal braces, four in number, having their upper ends bifurcated and pivotally secured to the post 14:. These braces, as well as all of the frame work of the chair so far as is practicable, will be formed out of angleor channel iron in order to secure maximum strength with minimum weight. The drawings. show the braces as formed out of channel iron. The lower ends of the braces are provided with shoes 16, preferably rigidly secured to said braces.- These shoes will provide a suitable bearing for the chair upon the floor or ground or other supporting surface. In the drawings I have shown them as resting upon and secured to removable rockers 18. These rockers have a flange 19 raised above the base of the rocker sufliciently to receive a projecting end of the shoe as shown in Fig. 7. The'rocker will referably comprise a base plate 20 which vill be transversely curved to cause it to remove obstructions from its path in the usual manner and a vertical member 21 to stiiien and strengthen the structure of the rocker; Pivotally secured to the inner side of the rocker-plate 21 is a cam lever 22 which is adapted to be moved into clamping contact with the shoe 16 to securely lock the diagonal braces 15 to the rockers.

For convenience in folding and carrying the rockers they will be transversely divided into a plurality of parts, here shown as three in number and these will be removably connected in the following manner: A splicing plate 24 which is shaped like an inverted U in cross section overlaps the upper edge of the plates 21 of the rocker and extends a suitable distance on each side of the joint to properly embrace and support the parts to be united. The inner member of this U- slide is bent as shown as 28 to form a lock to prevent the withdrawal of the slide 25 from the plate. 26 except by pressing down the bent end 28. That end of the divided rocker to which the plate 26 is riveted its-provided with a notch 29 in its upper edge to engagea correspondingly shaped lug 30 within the bend of the U-shaped plate 24,

whereby, when the notched end of the rocker ,c

is engaged under the lug 30 and between the members of the inverted ti -shaped plate 24, and the slide 25 is looked under the plate 26 the ends of the divided rocker will be rigidly and securely united,

Pivotally secured to the post 14 near the upper end of the post are the two diagonal braces 31 which extend to the front corners of the chair seat 33. Pivotally secured also to the post 14 are the two diagonal and rearwardly projected braces 34, and 36 are the respective posts which form the frame or the supports for the hack of the chair and which are connected with the diagonal braces 34 by means of the prop-joints 35. The prop-joints 35 are constructed so as to arrest the posts 36 at the proper angles to provide a chair-back of the proper slope. Rings 37 are provided at the outer ends of the diagonal braces 31 and at suitable distances on the post 36 above the prop-joints 35 for the attachment of seat 33, and the seat 33 which will preferably be of canvas or other suitable flexiblematerial will have corner hooks 38 to'engage rings 37 for the removable attachment of the seat 33 to the chair.

Pivotally secured to the braces 34 are the diagonal braces 40, the upper ends of which are notched tohook over the sides of the rings 37 close to the post 36, and the lower ends of the, braces 40 are notched to receive one of the flanges of post 14, and downward movement of the brace 40 caused by the weight of a person on the chair will be stopped by the contact of said ends with the-pivoted ends of the lower braces '15.

The posts 36-will be provided with rings 42 near their upper ends and the lower rings 43, all of which will be for the purpose of the attachment of a canvas or other flexible material 44 to complete the back of the chair. This material 44 is provided with corner hooks 45 for the removable attachment of the part 44 to the rings in the' posts 36.

The posts 36 will preferably be in jointed sections, here shown as three in number,

masses lateral strain, I provide the spring locking.

plates 48 on their backs, with perforations near their free ends to receive the pins 49. The ends of the pins 49 are beveled toward the joint to make their locking engagement with the plate 48 automatic and the ends of the plate are bent up to assist in this automatic locking operation.

A horizontal brace-bar 50 is pivotally attached at one end to post 36 and is removably secured by any suitable means (not shown), to the opposite post 36. This bar 50 also has a prop-joint midway of its length, as shown, to allow it to be folded.

A brace-bar 51 is pivotally secured to one of the front diagonal braces 15 and is re movably secured at its other end to the opposite one of said front diagonal braces 15 to increase the rigidity out the chair. I also provide flexible ties, here shown as chains, 53 from the outer ends of the lower diagonal braces 15 to the corresponding outer ends of the upper diagonal braces 31 and 34. I also provide diagonal ties 54 from the shoes 16 to the lower end of the post 14 to keep the braces 15 from spreading and to hold the post 14 in proper operative position.

Where the chair is to be used by heavy persons and additional strength to the back is required, ll provide the chains 55 extending from the outer ends of braces 31 to the middle of the back posts 36. And to brace,

the rockers to keep them from spreading and turning, I provide stiff rods 56 which are hinged to the lower end of post 14 and are bent at their outer ends to form hooks is'folded, upon a drum 59 in a case 58 by the action of spring 60 wound on spindle 61 and connected with the spindle and inner wall of the drum. This automatic reeling is capable of various modifications, all within the spirit of this invention.

In folding up the chair the first operation is to disengage and remove the fiex1ble seat 33 and back 44. Then the back posts 36 and the several diagonal braces are'folded over as their joints will permit into the shape shown in'Fig. 11, the rockers 18 having been previously disenga ed. The rockers are olded together in t e manner as shown in Fig. 12 and then if so desired all of the parts'may be. wrapped in the flexible-seat and back of the cha r.

Having thus fully described my invention what I c aim as new and wish to secure by Letters Patent of the UnitediStates, is-' 1. In a folding chair, a seat, a suspended post under the seat, downwardly oblique oot supports hinged at their upper ends to the post, lateral flanges terminating the lower ends of said foot supports, rockers, means for removably securing the shoes to said rockers, additional rocker supports extending from the rockers to the 0st, upwardly'oblique seat supports hinge at their lower ends to the post and means for removably'securin them to the seat.

2. In a fo ding chair, aseat, a post suspended above the floor under the seat, downwardly oblique foot supports hin ed at their upper ends to the (post, upwar y oblique seat supports hinge at their lower ends to the post, chair back posts hinged to the rear ones of said upwardly oblique seat su ports,

dia onal braces from the post under t e seat to t e chair back posts, and crossing the rear seat. supports and pivoted to them and to the chair-back posts and to the post, under the seat, said last braces, the chair back posts mit' folding, .and means for bracing and tying said hinged and folding parts to increase the rigidity and strengt of the chair.

3. In a foldin chair, a'c air seat, a suspended post, an a plurality of oblique supports for the seat hinged to the post, oblique post supports, shoes terminating said oblique post supports, rockers with concave upper faces having flanges to overlap; portions of said shoes, and cams with obhque bearings having faces to engage the concave shoes, to complete the removable fastening of the shoes to the rocker.

4. The combination with a folding chair, of rockers, means for removably securing the rockers to the chair, said rockers being .in a plurality of separable members, a U- shaped splicing, late attached to one member into which t e end of a second member is inserted, said splicing plate having an inside lu and saidseoond member having a detent in its u per edge to engage with said lug, a lower s ide-bar holding means, and a bar slidingl mounted on saldfirst member and adapted to engage said holding means on said second member.

In witness ,whereof I, have hereunto set my hand and seal at Indianapolis, Indiana, this, 9th day of February, A. D. one thousand nine hundred and ten.

JOHN T. rmY. a 8.]

Witnesses F. W. Wounmm, L. B. Wommnn. 

